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首页> 外文会议>Engineering in Medicine and Biology Society, 2000. Proceedings of the 22nd Annual International Conference of the IEEE >Thermal-coronary-angiography (TCA) for intraoperative evaluation of graft patency in coronary artery bypass surgery
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Thermal-coronary-angiography (TCA) for intraoperative evaluation of graft patency in coronary artery bypass surgery

机译：热冠状动脉造影（TCA）在术中评估冠状动脉搭桥手术中的移植物通畅性

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摘要

Despite the evolution of surgical techniques, coronary artery bypass graft surgery is complicated by early and late graft failure. While late graft failure is usually due to progression of the underlying disease, early graft failure can be caused by technical mistakes at the level of anastomoses. Thermal Coronary Angiography (TCA) has been developed to detect intraoperative graft failures. The method is based on the small temperature gradient that is produced by the inflow of blood into the graft and can be detected using an infrared scanner. TCA is a non-invasive method that requires no ionizing radiation or contrast documents. It allows to demonstrate graft patency of venous and arterial grafts and allows evaluation of perfusion after revascularization. It is also helpful detect distal stenoses in native coronary arteries. With the development of total endoscopic coronary artery bypass graft procedures using robotic assistance endoscopic TCA may prove to be a valuable tool for quality control in an endoscopic setting. Its value in the field of pediatric cardiac surgery for congenital disease involving reimplantation of coronaries needs yet to be explored. In summary, TCA is a valuable tool for intraoperative quality control in coronary artery bypass graft procedures and helps to minimize the risk of postoperative complications following myocardial revascularization.
机译：尽管手术技术不断发展，但冠状动脉搭桥术因早期和晚期移植失败而变得复杂。虽然晚期移植物衰竭通常是由于基础疾病的进展所致，但早期移植物衰竭可能是由吻合术水平的技术错误引起的。热冠状动脉造影（TCA）已被开发出来，以检测术中移植失败。该方法基于血液流入移植物所产生的较小的温度梯度，可以使用红外扫描仪对其进行检测。 TCA是一种非侵入性方法，不需要电离辐射或对比文件。它可以证明静脉和动脉移植物的通畅性，并可以评估血运重建后的灌注情况。它也有助于检测天然冠状动脉的远端狭窄。随着使用机器人辅助的全内镜冠状动脉搭桥术的发展，内窥镜TCA可能被证明是在内窥镜环境中进行质量控制的有价值的工具。其在涉及冠状动脉再植入的先天性疾病的小儿心脏外科领域的价值尚待探索。总之，TCA是在冠状动脉搭桥术中进行术中质量控制的宝贵工具，有助于最大程度地减少心肌血运重建术后并发症的风险。

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